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September 10th, 2009, 12:34 PM   #1
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Completing the square

How do you do it when there is multiple variables.

Ie.

1) 3x2+3x+2y=0 or 2) 9y2-6y-9-x=0

Thanks :S
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September 10th, 2009, 04:27 PM   #2
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Treat the variable that isn't squared as though it's a constant.
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September 10th, 2009, 04:33 PM   #3
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Re: Completing the square

Ok but in the second on there's four different terms.. :S
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September 10th, 2009, 06:51 PM   #4
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9y - 6y - 9 - x = 0 ? (3y - 1) = 10 + x.
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